Directions

Whisk 2 tsp oil and 1 teaspoon salt into yeast mixture. Add flour and stir with a wooden spoon until liquid is incorporated (dough will appear dry). Turn out onto a floured work surface. Knead until dough comes together in an elastic ball, 2 minutes. Transfer to an oiled medium bowl; brush lightly with oil. Cover bowl with plastic wrap; set in a warm, draft-free place until dough has doubled in bulk, 45 minutes. Punch down dough and cover; let rise another 30 minutes.

While the dough rests, prepare the potato topping. Slice potatoes very thin using a knife or a mandoline. Then soak them in several changes of ice water to remove excess starch and prevent discoloration. Drain slices in a colander, toss with 1/2 teaspoon salt, and set aside for 10 minutes. Drain any accumulated water. In a medium bowl, combine potatoes, onions, and 3 tsp olive oil, and set aside.

Preheat oven to 440 degrees. Prepare a rimmed baking sheet with vegetable oil. Place dough on baking sheet. Using the palms of your hands, flatten dough out to the edges of the pan. Evenly spread potatoes over the surface of the dough up to the very edge, or about 1 inch from the edge if you desire a crust on your pizza. Season with salt and pepper.

Bake potato pizza until it has shrunk away from the edges of a pan and the bottom is golden brown, about 30 minutes. Remove from oven, and allow to cool slightly; slice into pieces, and serve. Potato pizza is also delicious served at room temperature.